Drain test cap



FIG. 1 is a side elevation view of one side of the drain test cap showing my new design, the opposite side being a mirror image;

FIG. 2 is a front view elevation view thereof, the rear elevation view being a mirror image;

FIG. 3 is a longitudinal section through the drain test cap of FIG. 1 taken on the plane of the line 3--3 thereof;

FIG. 4 is a top plan view thereof; and,

FIG. 5 is a bottom plan view thereof. 

The ornamental design for a drain test cap, as shown and described. 